"Forbidden Artifact?"
Gu Chenfeng frowned. This was the first time he had heard that term.
Gu Lingxiao explained, "You can think of it as a special kind of Source Weapon.
"But the rarity of the materials needed to forge a Forbidden Artifact, and the difficulty of forging one, far surpass those of ordinary Source Weapons.
"Moreover, a Forbidden Artifact's power depends on how it is nurtured after its creation.
"It can be nurtured through the faith and worship of living beings, fed their blood and souls, or helped to grow through other means.
"A powerful Forbidden Artifact can move mountains and fill seas, possessing the power to destroy mountains and rivers!"
Gu Lingxiao gazed at the Forbidden Artifact longsword sealed within the crystal, his eyes burning.
"Back then, I only discovered this treasured sword through a chance encounter. It contains boundless power.
"In terms of value, it is probably worth more than all the treasures in this Underground Palace combined.
"Unfortunately, a powerful Sealing holds it here.
"I spent ten years exhausting every method before finally weakening the Sealing to this extent."
A trace of urgency appeared in Gu Lingxiao's eyes.
"Now that the Barbarian Tribe Army is invading southward, I must find a way to break the Sealing as soon as possible.
"If this sword falls into the barbarians' hands, we'll be in danger."
Gu Chenfeng's expression could not help shifting as well.
He had never expected this Underground Palace to conceal such an astonishing secret.
A short while later, Gu Chenfeng and Gu Lingxiao walked out of the stone chamber.
Gu Chenfeng once again rejected his father's suggestion that he leave the Blackwater Army and follow the Blood Tiger Guard somewhere safe.
Father and son would each go their own way.
Gu Chenfeng would return to the